Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 17.09.2018 beginning time = 1112 min.(UT), 18:32 UT Xbegin = -9.348 nT time of max = 1143 min.(UT), 19: 3 UT Xmax = 10.736 nT Y at Xmax = -0.452 nT endtime = 1162 min.(UT), 19:22 UT Xend = 3.564 nT amplitude = 20.084 nT base duration time = 50 min. 2sigma = 5.585 nT duration at 2sigma = 22 min. flagbegin = 0 flagend = 0 flagxcheck = 0